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  1. #1
    metrotuned WoS
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    30mm width rim an upgrade from 24mm width rim?

    Comparing two rims equal in materials, running a 29 x 2.4 tire, will the 30mm outer diameter rim perform that much better than a 24mm outer diameter rim?

    I'd like to run CX-Ray spokes to brass nipples on shallow 30mm wide rims. If I go freehub, it'll be Chris King. If SS specific freewheel, going with White Industries freewheel and Paul bolt-on hubs. Rider weight 200lbs dry.
    #willofthesun and author of the most viewed MTBR thread: Platform Pedal Shootout

  2. #2
    HJH
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    Pros:
    + better grip
    + possibility to use lower tire pressure

    Cons:
    - more weight --> more inertia

  3. #3
    Nouveau Retrogrouch SuperModerator
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    Quote Originally Posted by illnacord View Post
    Comparing two rims equal in materials, running a 29 x 2.4 tire, will the 30mm outer diameter rim perform that much better than a 24mm outer diameter rim?

    I'd like to run CX-Ray spokes to brass nipples on shallow 30mm wide rims. If I go freehub, it'll be Chris King. If SS specific freewheel, going with White Industries freewheel and Paul bolt-on hubs. Rider weight 200lbs dry.
    You better mean 24 vs 30mm width, not diameter. A 29er tire has a bead seat diameter of 622mm.

    Generally the wider tire will perform better on the wider rim. An inside width of ~22mm seems to be the sweet spot for most mtb tires.
    mtbtires.com
    The trouble with common sense is it is no longer common

  4. #4
    metrotuned WoS
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    Thanks. Went with the 30mm wide rims. Now to decide on spokes: bladed cx rays, butted Phil, or Marwi titanium.
    #willofthesun and author of the most viewed MTBR thread: Platform Pedal Shootout

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